Grain drill disk



GRAN DRILL DISK Filed May 17, 1930 invern-0&9

ATTOR NEY Patented Sept. 1 1 93 l il l l ,82 9

iTsn STATES PATENT OFFICE HABLAN COE, OF SQKLNE, AND CLFTON l. CGE, 0F PLAZA', WASHNGTON C-.RAN DRILL DISK Application filed May 17, 1930. Serial No. 453,307.

The object of this invention is the pro- Of course, the portion of the holt that is revision of an attachment for disl-grain drills ceived throughthe draw bar is round which .Will cause thev seed to be deposited cross section. Our improvement is in the in the soil at a uniform depth regardless nature yof a concaveconvex disk 5 Whose 5 of Whether the drill is being` operated in edge is in Contact with the outer face of 553 hrm or Soft Soil, l the disk l Tie central or bulged portion of To the `attainment of the foregoing the the concave convex plate has a squared invention consists in the improvement hereopening therethrough for the reception of inai'ter described and definitely claimed. the Squared portion 2 of the spindle bolt 3 o In the drawings; and the upper face of the' concavo convex Figure l is a Sid@ elevation of the disks, plate is in direct contact With the draw har of a. grain drill provided with the improve- 4- n Y A meuf v A disk attachment as above set forthy can;

llioure 2 is an approximately central secbo hlplfy lhhlluffllrd and `readily 2LP- n i3 tional viewv through a grain disk equipped Plled OIl the CllSl l- The member 5 1S, Of "y Wirth the improvement-, eourse, in the nature of a depth regulator Figure 3 is a sectional vieuY approximatemfl Wlll prevent the disk .entering the soil 1v Oli the 1in@ of Figur@ 1 beyond a predetermined distance. The reu Figure el is sectional viewoii the line sul? 1S @hat the SeCl Clllvelel from the io 4 4015 pig-ure Q. grain drills will be deposited at a uniform One oi' the dii'liculties encountered in drill-A Cllf'll. ill the SOl, regardless 0f Whether the ingn g1-rin is opl-@vent the, Sed being drill is beingoperated in firm or soft soil. deposited at irregular depths as the nature YHRVHW ClGSCIllUeCl the 1I1VI1t 1OI1,We Claim: of the soil varies. In soft or loose soil the i hh 'thchheht, for the. fhks 0f gl'mh is disks cut deeper into the soil and deposit the Ch'lhsf md 1h WhlCh th@ CllSk' 1S XeCl Oll a "l seed too deep for proper seeding, causing fluh'ed lolhoh 0f a Splhdl@ hol@ 0h YVh1Ch the seed to `germinate slowly, thus retard- 1S .lhh'haled t @WW hal' 'and colhprlslhg il ing` theroot formation and .cutting down the lfhehhgl ,rouhd 1h Phlh and COHCPLVO CODYGX yield, While in other types of soil the seed 1h CFOSS Sectvohfhd Centrally fffnhed Wlth' :"5 is ,mt www?, t the proper epi-h. a 'squared opening to receive the squared It :vill he noted that with our simple iin- PO'tlOh of 1LJh@ Splhdle holt therethrough pi'oveinent, ",vhicii is really iii the nature of it@ have lts 01159? fgC@ COIllCeCl by the draw an attachment for grain disks, that the disk bh' @hd t0 have lhs edg? lorcfd hy Such is permitted to enter the soil only at a pre- 00h-taci lgllhst the fCeO the CllSl.

53 determined depth and conssquently the seedV Ih hhsthhohy Whe'eO We ahX Ouf Slgha* l" Will be deposited beneath the earth at a prehhle determined distance so that all the seed Will A HABLAN CUE. germinate at the saine time and thereby man CLIFTON P. COE. teiially increase the yield. c i

il Ref'eriinU now to the drawings in detail, 90,

the numeral l designates an ordinary disk tot grain drills. The disks, as disclosed by Figure l of the drawings, are arranged in pairs and are disposed angularly With re- -fspect to each other. Each of the disks has i 95 a central squared opening` for the reception of the squared end 2 of the spindleloolt 3. The spindle bolt has held thereon by the usual nut and Washer the draw bar 4 ino Y which is provided With theusual grease cup. 

